def diff_file_stats(file_stats, history_entries, groupids, slog):
with slog.time("group history by path") as rt:
history_by_gpath = group_history_by_gpath(history_entries)
rt.set_result({"path count": len(history_by_gpath)})
with slog.time("compare to latest history"):
for (rpath, size, mtime) in file_stats:
groupid = groupids.from_root(rpath.root)
if groupid is None:
slog.ignored_rpath_without_groupid(rpath)
else:
gpath = (groupid, rpath.rel)
history = history_by_gpath.pop(gpath, None)
if history is None:
yield FileDiff.created(gpath, rpath, size, mtime, None)
else:
latest = history.latest
if latest.size != size \
or not mtimes_eq(latest.mtime, mtime):
yield FileDiff.changed(gpath, rpath, size, mtime, None)
else:
pass # unchanged
with slog.time("find missing paths"):
for missing_gpath, missing_history in history_by_gpath.iteritems():
if not missing_history.latest.deleted:
(groupid, path) = missing_gpath
root = groupids.to_root(groupid)
if root is None:
slog.ignored_gpath_without_root(missing_gpath)
else:
yield FileDiff.deleted(
missing_gpath, RootedPath(root, path),
DELETED_SIZE, DELETED_MTIME, "")
def is_stable(fdiff):
(rescan_size, rescan_mtime) = rescan_stats_by_rpath.get(
fdiff.rpath, (DELETED_SIZE, DELETED_MTIME))
return fdiff.size == rescan_size and \
mtimes_eq(fdiff.mtime, rescan_mtime)
